2215133501 has 16 divisors (see below), whose sum is σ = 2604744960. Its totient is φ = 1844000640.

The previous prime is 2215133497. The next prime is 2215133573. The reversal of 2215133501 is 1053315122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2215133501 - 2² = 2215133497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215130501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139856 + ... + 154886.

It is an arithmetic number, because the mean of its divisors is an integer number (162796560).

Almost surely, 2^2215133501 is an apocalyptic number.

It is an amenable number.

2215133501 is a deficient number, since it is larger than the sum of its proper divisors (389611459).

2215133501 is a wasteful number, since it uses less digits than its factorization.

2215133501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15644.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2215133501 is about 47065.2047801770. The cubic root of 2215133501 is about 1303.5668320880.

Adding to 2215133501 its reverse (1053315122), we get a palindrome (3268448623).

The spelling of 2215133501 in words is "two billion, two hundred fifteen million, one hundred thirty-three thousand, five hundred one".